Milk and cheese vat



2 sheets- -sheet 1.

(No Model.)

A. H. SNYDER.

MILK AND CHEESE VAT.

Patented Nov. 15,1881.

M f WK X a 4 1% 7 Z w \b N w W. W M RM N @\v\ m P m M (No Model.) 2Sheets-Sheet 2.

A. H. SNYDER.

MILK AND GHEESBVAT.

No. 249,686. Patented Nov. 15,1881.

6 Le=J MFA/5555, 3 Awgmy;

N. PETERS. Phnln-lilhugr-zphor. wmin nm 0.0.

Unrren rates faranr Grates...

AMOS H. SNYDER, OF HIGHLAND TO\VNSHIP, BUCKS COUNTY, PA.

MILK AND CHEESE VAT.

SPECIFICATION forming part of Letters Patent No, 249,686, dated.November 15, 1881.

(No model.)

To all whom it may concern:

Be it known that I, AMOS H. SNYDER, a citizen of the United States,residing in Richland township, Bucks county, Pennsylvania, have inventedcertain Improvements in Milk and- Gheese Vats, and in appliancesconnected therewith, of which the following is a specification.

Myinvention relates to certain improvements in the apparatus for warmingor cooling milk for which Letters Patent of the United States No.224,485 were granted to me February 10, 1880, the objects or my presentimprovements beingtoo fully set forth herein after to need preliminaryexplanation.

In the accompanying drawings, Figure 1, Sheet 1, is a transverse sectionof apparatus in which my improvements are shown, and Fig.2 alongitudinal section.

A A represent a pair of tanks, arranged side by side and as closelytogether as convenience will permit. In each of these tanks is anagitator, B, which is suspended from suitable bearings on the ceiling bymeans of a pair of arms, D D, so that said agitator is free to swinglatorally within the tank. Each of the arms D consists of two sections,a c, the section a being capable of moving vertically on the section a,and being guided and steadied during this movement by suitable embracingstraps or equivalent guides, and the movement being effected either byrack-and-pinion devices such as shown, or by a strap and drum or otherequivalent means, suitable provision being made for retaining thesections a of the arms and the a gitator B carried thereby in positionafter they have been elevated.

Power derived from a suitably-located shaft is transmitted to the arms DD of each agitator through the means of a crank, connecting-rods w, andtwo bars, E E, which extend from the suspending-arms D D, carrying theagitator of one tank A to the arms carrying the agitator of the othertank. The crank is preferably slotted, so as to vary the extent ofvibration of the agitators. The bars E are connected to the arms D atpoints as close to the agitators B as convenient. In the presentinstance the bars are connected to the lower ends of the upper sections,a, ofthe arms, the ends ofeaeh bar being slotted for the reception ofthe projecting ends of the shafts b, which carry the pinions of theelevatingmecbanism, the outer ends ofeach shaftbbeingthreadedforthereceptionofthumbnuts (1, whereby the bars E may be clamped to orreleased from the arms D, the slotsin the barsbeingo'fsuch alength thatwhen the clamping-nuts d are loosened the arms D will not be affected bythe reciprocation of said bars. This mode ofhanging and driving theagitators possesses several advantages. The connection of the drivingmechanism to the suspending devices between the point of suspension andthe agitator is the mosteffective method, as it enables the power to beapplied as closely as possible tothepoint where itis to be utilized. Theuse of a separate operating rod or bar for each arm D of the suspendingstructure, moreover, insures longitudinal steadiness of the saidstructure and of the agitator carried thereby and prevents any twistingof the agitator in the tank.

By means ofthe operating-bars E, construct-- ed and connected to thearms 1) as described, the agitatorsof both tanks may be vibrated inunison, or either ofsaid agitators may be thrown out of gear withoutaffecting the operation of the other, and the agitators may be raisedand lowered without interfering with the action of the vibratingdevices.

When but one tank is used the rods 00 may be connected directly to thearms D, or this plan may even be used in some cases where more than onetank is employed. The use of the bars E in the latter case, however, isalways preferred for the reasons above given.

The agitator B, which I have shown .in the present instance, is adaptedto serve as a heater for the milk or curds, and is composed of twolongitudinal tubes, 0, connected at the opposite ends to vertical inletand overflow tubes ff, one of the latter being provided with asteampipe, g, from which a number of branches, h, extend into each ofthe tubes 0, the branches varying in length, so as to terminate atdifferent points in the tubes and effect a uniform distribution of steamthroughout the same, and a consequent uniform heating of the watertherein. The heating of the water and the maintenance of the same at auniform temperature are further facilitated bysurrounding the end ofeach of the branches h of the pipe 9 with a short tube, 13, which isopen at both ends, and V is of a diameter somewhat greater than thebranch h, the end of the latter projecting to the center, or about thecenter, of the tube, so that the jet from the same will induce acirculation of water through the, tube. A series of currents within eachtube or pipe 0 of the agitator is thus caused, and the steam isprevented from impinging directly upon the inner surfaces of the tubes6, thereby preventing the overheating of the latter and the burning ofthe milk.

The flow of steam to the branches in the upper pipe 0 is governed by avalve, m, so that the heating of the water in said upper tube may bediscontinued without affecting the admission of steam to the lower tube.

When the device is used as a milk-cooler, cold water may be caused topass through the pipeg and its branches, in place of steam.

Each tank A has a double casing inclosing a water-chamber, the waterbeing heated by means similar to those employed in heating the tubes eof the agitator.

My invention is not limited to the use of the heating or cooling devicesabove described; nor do I claim said devices, as they are the inventionof M.B. Snyder, and will form part of the subjectmatter of a separateapplication.

The bottom of the tank is madein thearc of a circle of which thepivot-line of the supporting-arms D is the center. By this means theagitator is caused to move in close proximity to the bottom of the tank,and a thorough agitation of the milk or curds at this point is effected,all portions of the mass of milk or curds being thus brought under theheating action of the tank and of the agitator when the latter isheated.

In order that the tank A may be tilted when desired, I provide the frameof the tank at one end with guided racks n, which are actuated bypinions p, the shafts of which are adapted to hearings on the frame, andare furnished with arms orlevers,whereby they maybe caused to partlyturn in order to elevate or depress the racks. A single shaft having asingle arm and carrying both pinions may sometimes be used.

I claim as my invention- 1. The combination of the tank and the agitatoradapted thereto with a pivoted suspension-arm, D, made in two parts, aa, the lower part, a, being adjustable on and guided by the upper part,a, andwith an operating-rod connected to the lower end of the portion aof the said suspension-arm below the guides, as set forth.

2. The combination of two or more tanks, A, each containing an agitatoradapted to be vibrated laterally in the tank, suspending devices forsaid agitators, and a rod or rods, E, connecting the suspendingdevices-of two or more agitators, but capableof being readily releasedtherefrom, as set forth.

3. The combination of two or more tanks, A, agitators B therein,suspending devices for said agitators, and an arm or arms, E, connectingthe suspending devices of two or more agitators, and slotted for thereception of the securing-bolts, as set forth.

In testimony whereof I have signed my name to this specification in thepresenceof twosubscribing witnesses.

AMOS H. SNYDER.

Witnesses:

WM. P. LOGAN, HARRY SMITH.

